SFO conducts an annual survey and collects data on passenger demographics and satisfaction with airport facilities and services from stratified random samples. This study uses secondary data from the 2018 SFO annual survey, which provided a random sample of 2809 responses on 95 questions, with a number of missing responses ranging from 0 to 2809.
In this study, two types of predictor variables are selected to determine the key drivers of overall satisfaction at SFO: ratings, and cleanliness. Ratings include a total of 15 items (artwork exhibitions, restaurants, retail shops and concessions, signs and directions inside SFO, escalators/elevators/moving walkways, information on screens/monitors, information booths (lower level - near baggage claim), information booths (upper level - departure area), accessing and using free Wi-Fi at SFO, signs and directions on SFO airport roadways, airport parking facilities, AirTrain, long term parking lot shuttle (bus ride), airport rental car center, and SFO Airport as a whole. A 5-point Likert scale, with 1 as “Unacceptable” to 5 as “Outstanding” is used to measure ratings.
Age, gender, and income are the demographic variables, with age categorized into 7 levels, gender categorized into 3 levels, and income categorized into 5 levels. Data inputs tab shows the data we selected for this study.
| Rating | Rating_code |
|---|---|
| Unacceptable | 1 |
| 2 | |
| 3 | |
| 4 | |
| Outstanding | 5 |
| Age | Age_code |
|---|---|
| Under 18 | 1 |
| 18 - 24 | 2 |
| 25 - 34 | 3 |
| 35 - 44 | 4 |
| 45 - 54 | 5 |
| 55 - 64 | 6 |
| 65 and over | 7 |
| Gender | Gender_code |
|---|---|
| Male | 1 |
| Female | 2 |
| Non-binary | 3 |
| Income | Income_code |
|---|---|
| Under 50,000 | 1 |
| $50,000 - $100,000 | 2 |
| $100,001 - $150,000 | 3 |
| Over $150,000 | 4 |
| Other Currency (specify) | 5 |
| Age | Gender | Income | Overall_Satisfaction |
|---|---|---|---|
| 5 | 1 | 5 | 4 |
| 6 | 1 | 2 | 4 |
| 6 | 2 | 4 | 4 |
| 3 | 1 | 2 | 3 |
| 5 | 1 | 3 | 4 |
| 3 | 2 | 4 | 3 |
| 4 | 2 | 0 | 4 |
| 6 | 2 | 2 | 4 |
| 7 | 2 | 2 | 4 |
| 3 | 2 | 4 | 4 |
| 4 | 2 | 4 | 3 |
| 3 | 2 | 0 | 4 |
| 5 | 2 | 0 | 4 |
| 7 | 2 | 2 | 4 |
| 5 | 2 | 4 | 4 |
| 7 | 1 | 2 | 4 |
| 7 | 2 | 0 | 0 |
| 3 | 2 | 1 | 5 |
| 6 | 2 | 1 | 4 |
| 4 | 1 | 3 | 4 |
| 4 | 1 | 4 | 4 |
| 7 | 2 | 3 | 5 |
| 7 | 2 | 0 | 5 |
| 6 | 1 | 3 | 5 |
| 7 | 1 | 3 | 4 |
| 3 | 1 | 3 | 5 |
| 3 | 2 | 4 | 4 |
| 7 | 2 | 3 | 5 |
| 6 | 2 | 4 | 3 |
| 6 | 2 | 4 | 5 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 5 | 1 | 5 | 3 |
| 6 | 1 | 2 | 3 |
| 6 | 2 | 4 | 4 |
| 3 | 1 | 2 | 3 |
| 5 | 1 | 3 | 4 |
| 3 | 2 | 4 | 4 |
| 4 | 2 | 0 | 5 |
| 6 | 2 | 2 | 3 |
| 7 | 2 | 2 | 4 |
| 3 | 2 | 4 | 3 |
| 4 | 2 | 4 | 4 |
| 3 | 2 | 0 | 5 |
| 5 | 2 | 0 | 4 |
| 7 | 2 | 2 | 2 |
| 5 | 2 | 4 | 4 |
| 7 | 1 | 2 | 4 |
| 7 | 2 | 0 | 5 |
| 3 | 2 | 1 | 4 |
| 6 | 2 | 1 | 4 |
| 4 | 1 | 3 | 3 |
| 4 | 1 | 4 | 5 |
| 7 | 2 | 3 | 4 |
| 7 | 2 | 0 | 5 |
| 6 | 1 | 3 | 4 |
| 7 | 1 | 3 | 4 |
| 3 | 1 | 3 | 4 |
| 3 | 2 | 4 | 4 |
| 7 | 2 | 3 | 5 |
| 6 | 2 | 4 | 5 |
| 6 | 2 | 4 | 4 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 6 | 2 | 4 | 3 |
| 4 | 0 | 2 | 4 |
| 3 | 1 | 0 | 5 |
| 3 | 2 | 0 | 4 |
| 0 | 0 | 0 | 5 |
| 6 | 2 | 2 | 4 |
| 2 | 1 | 0 | 4 |
| 3 | 1 | 0 | 3 |
| 4 | 2 | 0 | 4 |
| 3 | 1 | 0 | 4 |
| 3 | 1 | 1 | 3 |
| 4 | 1 | 3 | 4 |
| 4 | 1 | 0 | 2 |
| 6 | 1 | 1 | 3 |
| 3 | 1 | 4 | 4 |
| 7 | 1 | 0 | 3 |
| 3 | 1 | 2 | 4 |
| 3 | 1 | 3 | 3 |
| 4 | 1 | 4 | 3 |
| 5 | 2 | 4 | 4 |
| 4 | 1 | 3 | 2 |
| 5 | 2 | 4 | 4 |
| 6 | 1 | 3 | 3 |
| 4 | 1 | 4 | 4 |
| 6 | 1 | 2 | 4 |
| 3 | 2 | 2 | 5 |
| 7 | 2 | 1 | 4 |
| 3 | 1 | 2 | 4 |
| 7 | 2 | 4 | 3 |
| 4 | 1 | 2 | 5 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 4 | 0 | 2 | 3 |
| 3 | 1 | 4 | 3 |
| 4 | 2 | 3 | 1 |
| 4 | 1 | 3 | 2 |
| 7 | 1 | 1 | 3 |
| 3 | 1 | 0 | 3 |
| 7 | 1 | 1 | 4 |
| 2 | 1 | 0 | 3 |
| 5 | 1 | 4 | 3 |
| 4 | 2 | 4 | 4 |
| 3 | 1 | 4 | 3 |
| 5 | 1 | 4 | 3 |
| 6 | 2 | 0 | 4 |
| 3 | 1 | 0 | 4 |
| 3 | 2 | 2 | 3 |
| 5 | 2 | 3 | 4 |
| 4 | 1 | 2 | 4 |
| 4 | 2 | 0 | 5 |
| 5 | 2 | 4 | 3 |
| 2 | 1 | 1 | 4 |
| 6 | 1 | 4 | 3 |
| 5 | 2 | 4 | 4 |
| 6 | 1 | 2 | 3 |
| 3 | 1 | 1 | 4 |
| 3 | 2 | 2 | 5 |
| 5 | 1 | 3 | 4 |
| 3 | 1 | 2 | 4 |
| 3 | 2 | 2 | 4 |
| 2 | 2 | 1 | 5 |
| 7 | 2 | 3 | 3 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 4 | 1 | 2 | 4 |
| 4 | 2 | 4 | 3 |
| 6 | 1 | 1 | 4 |
| 5 | 2 | 2 | 5 |
| 5 | 1 | 4 | 4 |
| 7 | 2 | 1 | 3 |
| 5 | 1 | 4 | 3 |
| 6 | 2 | 0 | 4 |
| 6 | 2 | 0 | 5 |
| 4 | 1 | 4 | 4 |
| 4 | 2 | 2 | 4 |
| 4 | 2 | 2 | 5 |
| 4 | 2 | 3 | 3 |
| 6 | 2 | 2 | 4 |
| 3 | 2 | 4 | 5 |
| 5 | 1 | 3 | 3 |
| 5 | 1 | 4 | 4 |
| 6 | 2 | 2 | 4 |
| 6 | 2 | 3 | 5 |
| 7 | 2 | 2 | 4 |
| 5 | 1 | 4 | 5 |
| 2 | 1 | 1 | 5 |
| 6 | 2 | 4 | 3 |
| 3 | 2 | 0 | 4 |
| 2 | 1 | 3 | 5 |
| 4 | 1 | 3 | 3 |
| 2 | 1 | 0 | 4 |
| 5 | 1 | 4 | 5 |
| 4 | 1 | 3 | 5 |
| 4 | 2 | 2 | 5 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 2 | 2 | 3 | 5 |
| 3 | 1 | 2 | 3 |
| 6 | 1 | 2 | 4 |
| 6 | 1 | 1 | 3 |
| 3 | 1 | 1 | 5 |
| 7 | 2 | 3 | 5 |
| 4 | 1 | 0 | 5 |
| 4 | 1 | 3 | 5 |
| 5 | 2 | 3 | 3 |
| 3 | 1 | 0 | 5 |
| 3 | 2 | 3 | 4 |
| 5 | 2 | 2 | 5 |
| 6 | 2 | 0 | 5 |
| 3 | 2 | 4 | 5 |
| 4 | 1 | 4 | 3 |
| 3 | 2 | 0 | 4 |
| 7 | 2 | 0 | 5 |
| 4 | 1 | 0 | 4 |
| 6 | 2 | 4 | 5 |
| 0 | 1 | 0 | 4 |
| 6 | 1 | 4 | 4 |
| 6 | 2 | 2 | 3 |
| 7 | 2 | 1 | 4 |
| 0 | 0 | 0 | 5 |
| 4 | 1 | 2 | 4 |
| 7 | 2 | 0 | 5 |
| 7 | 2 | 2 | 3 |
| 3 | 2 | 2 | 4 |
| 6 | 1 | 0 | 4 |
| 3 | 2 | 1 | 5 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 2 | 2 | 3 | 4 |
| 6 | 2 | 4 | 4 |
| 3 | 2 | 0 | 5 |
| 7 | 2 | 4 | 3 |
| 4 | 2 | 3 | 3 |
| 3 | 1 | 3 | 3 |
| 4 | 1 | 3 | 4 |
| 5 | 1 | 3 | 4 |
| 7 | 1 | 3 | 3 |
| 3 | 1 | 0 | 4 |
| 5 | 2 | 2 | 4 |
| 6 | 2 | 0 | 4 |
| 3 | 2 | 0 | 3 |
| 3 | 1 | 1 | 4 |
| 7 | 2 | 2 | 4 |
| 7 | 1 | 2 | 4 |
| 6 | 1 | 1 | 4 |
| 4 | 2 | 4 | 4 |
| 7 | 1 | 0 | 4 |
| 3 | 2 | 0 | 5 |
| 5 | 2 | 0 | 4 |
| 3 | 2 | 1 | 5 |
| 6 | 2 | 4 | 4 |
| 3 | 2 | 2 | 3 |
| 3 | 1 | 1 | 5 |
| 4 | 1 | 4 | 5 |
| 6 | 1 | 2 | 5 |
| 3 | 1 | 2 | 5 |
| 7 | 1 | 3 | 4 |
| 7 | 2 | 3 | 5 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 0 | 0 | 0 | 5 |
| 5 | 2 | 2 | 3 |
| 7 | 2 | 2 | 3 |
| 6 | 1 | 1 | 3 |
| 3 | 1 | 4 | 4 |
| 5 | 2 | 0 | 3 |
| 5 | 2 | 3 | 5 |
| 4 | 1 | 4 | 4 |
| 7 | 2 | 1 | 4 |
| 6 | 2 | 1 | 5 |
| 2 | 2 | 3 | 4 |
| 4 | 1 | 4 | 5 |
| 5 | 2 | 3 | 4 |
| 4 | 1 | 3 | 5 |
| 3 | 1 | 1 | 4 |
| 6 | 2 | 2 | 4 |
| 3 | 2 | 2 | 5 |
| 3 | 2 | 1 | 4 |
| 3 | 2 | 5 | 3 |
| 0 | 0 | 0 | 2 |
| 6 | 2 | 4 | 5 |
| 3 | 2 | 2 | 4 |
| 2 | 1 | 2 | 3 |
| 7 | 1 | 0 | 3 |
| 6 | 1 | 4 | 3 |
| 6 | 1 | 4 | 2 |
| 6 | 1 | 5 | 3 |
| 3 | 1 | 0 | 4 |
| 6 | 1 | 2 | 3 |
| 5 | 1 | 4 | 3 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 6 | 2 | 0 | 4 |
| 4 | 2 | 3 | 1 |
| 3 | 2 | 2 | 4 |
| 7 | 2 | 4 | 1 |
| 5 | 1 | 4 | 5 |
| 4 | 1 | 2 | 3 |
| 4 | 1 | 4 | 4 |
| 6 | 1 | 1 | 2 |
| 6 | 1 | 0 | 4 |
| 3 | 1 | 0 | 4 |
| 3 | 1 | 1 | 3 |
| 3 | 2 | 3 | 4 |
| 3 | 2 | 2 | 5 |
| 3 | 1 | 1 | 5 |
| 3 | 1 | 2 | 4 |
| 5 | 1 | 4 | 3 |
| 2 | 2 | 3 | 3 |
| 6 | 2 | 3 | 4 |
| 3 | 1 | 4 | 5 |
| 2 | 2 | 2 | 5 |
| 2 | 2 | 1 | 5 |
| 2 | 2 | 0 | 5 |
| 4 | 2 | 0 | 5 |
| 4 | 1 | 4 | 3 |
| 3 | 2 | 2 | 3 |
| 6 | 1 | 4 | 3 |
| 4 | 1 | 3 | 4 |
| 3 | 1 | 1 | 3 |
| 4 | 1 | 1 | 4 |
| 5 | 1 | 4 | 3 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 5 | 1 | 5 | 5 |
| 4 | 0 | 2 | 2 |
| 6 | 1 | 1 | 4 |
| 5 | 2 | 2 | 5 |
| 6 | 2 | 0 | 4 |
| 3 | 2 | 2 | 3 |
| 7 | 2 | 0 | 4 |
| 5 | 2 | 3 | 4 |
| 3 | 2 | 3 | 5 |
| 4 | 1 | 4 | 4 |
| 3 | 2 | 0 | 5 |
| 4 | 2 | 4 | 3 |
| 5 | 2 | 4 | 3 |
| 3 | 1 | 4 | 3 |
| 3 | 2 | 4 | 5 |
| 6 | 1 | 4 | 5 |
| 6 | 1 | 3 | 3 |
| 5 | 2 | 3 | 3 |
| 5 | 1 | 4 | 5 |
| 2 | 1 | 1 | 5 |
| 3 | 2 | 2 | 5 |
| 6 | 1 | 0 | 5 |
| 5 | 2 | 2 | 4 |
| 4 | 1 | 3 | 3 |
| 7 | 1 | 4 | 4 |
| 3 | 1 | 2 | 5 |
| 6 | 2 | 2 | 5 |
| 3 | 2 | 1 | 5 |
| 5 | 1 | 4 | 5 |
| 4 | 2 | 2 | 5 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 3 | 1 | 1 | 5 |
| 3 | 1 | 2 | 4 |
| 5 | 2 | 1 | 5 |
| 3 | 2 | 3 | 4 |
| 6 | 2 | 0 | 3 |
| 6 | 1 | 3 | 4 |
| 3 | 1 | 3 | 5 |
| 3 | 2 | 1 | 5 |
| 2 | 1 | 2 | 2 |
| 7 | 2 | 2 | 5 |
| 6 | 2 | 0 | 4 |
| 6 | 2 | 3 | 4 |
| 0 | 2 | 2 | 4 |
| 3 | 1 | 3 | 5 |
| 3 | 2 | 4 | 5 |
| 4 | 1 | 2 | 4 |
| 2 | 2 | 3 | 5 |
| 6 | 1 | 0 | 5 |
| 3 | 2 | 4 | 5 |
| 7 | 2 | 3 | 1 |
| 3 | 2 | 0 | 5 |
| 6 | 2 | 4 | 5 |
| 3 | 2 | 1 | 4 |
| 3 | 1 | 3 | 5 |
| 3 | 1 | 2 | 5 |
| 2 | 2 | 2 | 3 |
| 3 | 2 | 2 | 5 |
| 2 | 1 | 2 | 4 |
| 6 | 2 | 1 | 5 |
| 5 | 1 | 2 | 5 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 6 | 2 | 4 | 4 |
| 6 | 2 | 2 | 3 |
| 5 | 2 | 0 | 4 |
| 6 | 2 | 4 | 4 |
| 7 | 1 | 2 | 4 |
| 6 | 2 | 0 | 3 |
| 4 | 1 | 4 | 5 |
| 7 | 1 | 3 | 4 |
| 4 | 1 | 2 | 3 |
| 7 | 2 | 3 | 5 |
| 4 | 1 | 3 | 5 |
| 5 | 1 | 2 | 5 |
| 7 | 2 | 1 | 5 |
| 5 | 1 | 2 | 4 |
| 5 | 1 | 2 | 3 |
| 7 | 2 | 4 | 5 |
| 7 | 2 | 1 | 5 |
| 7 | 1 | 0 | 5 |
| 2 | 1 | 2 | 4 |
| 5 | 2 | 1 | 3 |
| 5 | 2 | 5 | 3 |
| 5 | 1 | 2 | 3 |
| 4 | 1 | 4 | 3 |
| 6 | 1 | 4 | 3 |
| 6 | 2 | 3 | 3 |
| 7 | 2 | 4 | 3 |
| 5 | 2 | 4 | 3 |
| 1 | 2 | 1 | 3 |
| 3 | 1 | 3 | 3 |
| 4 | 1 | 4 | 4 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 3 | 1 | 0 | 4 |
| 3 | 1 | 1 | 3 |
| 6 | 2 | 0 | 5 |
| 4 | 1 | 2 | 5 |
| 6 | 1 | 1 | 5 |
| 6 | 1 | 4 | 4 |
| 3 | 2 | 3 | 5 |
| 5 | 2 | 4 | 5 |
| 6 | 1 | 2 | 4 |
| 5 | 1 | 3 | 5 |
| 7 | 1 | 2 | 5 |
| 3 | 2 | 2 | 4 |
| 5 | 1 | 2 | 4 |
| 5 | 2 | 1 | 5 |
| 3 | 2 | 1 | 5 |
| 4 | 1 | 3 | 5 |
| 3 | 2 | 2 | 5 |
| 7 | 2 | 3 | 4 |
| 3 | 1 | 3 | 5 |
| 6 | 1 | 4 | 2 |
| 0 | 0 | 0 | 5 |
| 5 | 2 | 4 | 4 |
| 6 | 1 | 5 | 3 |
| 3 | 1 | 0 | 4 |
| 4 | 1 | 0 | 4 |
| 5 | 1 | 4 | 5 |
| 4 | 1 | 4 | 3 |
| 5 | 2 | 0 | 4 |
| 3 | 2 | 0 | 3 |
| 3 | 2 | 4 | 4 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 0 | 0 | 0 | 4 |
| 6 | 1 | 3 | 4 |
| 5 | 1 | 4 | 3 |
| 6 | 2 | 3 | 4 |
| 3 | 1 | 4 | 5 |
| 4 | 2 | 4 | 5 |
| 5 | 1 | 2 | 3 |
| 3 | 2 | 1 | 4 |
| 6 | 2 | 4 | 4 |
| 5 | 1 | 4 | 4 |
| 5 | 1 | 4 | 3 |
| 6 | 2 | 4 | 4 |
| 3 | 1 | 4 | 2 |
| 4 | 1 | 3 | 3 |
| 0 | 0 | 0 | 4 |
| 4 | 1 | 0 | 3 |
| 4 | 1 | 3 | 2 |
| 3 | 1 | 1 | 4 |
| 7 | 2 | 3 | 3 |
| 7 | 1 | 3 | 3 |
| 4 | 1 | 0 | 5 |
| 6 | 1 | 0 | 2 |
| 4 | 1 | 0 | 5 |
| 6 | 1 | 4 | 2 |
| 3 | 1 | 0 | 3 |
| 5 | 1 | 4 | 3 |
| 6 | 2 | 4 | 3 |
| 3 | 2 | 1 | 4 |
| 6 | 2 | 3 | 3 |
| 5 | 1 | 4 | 4 |
| Age | Gender | Income | Satisfaction_Rating |
|---|---|---|---|
| 4 | 0 | 2 | 2 |
| 5 | 2 | 2 | 5 |
| 5 | 1 | 4 | 4 |
| 3 | 2 | 2 | 3 |
| 6 | 2 | 2 | 4 |
| 3 | 1 | 4 | 2 |
| 5 | 1 | 4 | 4 |
| 4 | 1 | 3 | 3 |
| 5 | 1 | 4 | 5 |
| 4 | 1 | 3 | 5 |
| 5 | 2 | 4 | 4 |
| 7 | 1 | 4 | 4 |
| 4 | 1 | 2 | 4 |
| 5 | 1 | 0 | 4 |
| 4 | 2 | 3 | 5 |
| 2 | 2 | 2 | 4 |
| 3 | 2 | 3 | 5 |
| 3 | 2 | 1 | 2 |
| 2 | 1 | 1 | 4 |
| 6 | 1 | 0 | 5 |
| 6 | 1 | 4 | 5 |
| 6 | 2 | 2 | 3 |
| 3 | 1 | 4 | 3 |
| 5 | 2 | 4 | 2 |
| 6 | 1 | 3 | 4 |
| 4 | 1 | 4 | 5 |
| 0 | 2 | 2 | 4 |
| 6 | 2 | 3 | 4 |
| 4 | 1 | 3 | 4 |
| 6 | 2 | 4 | 3 |
| Rating | Rating_code |
|---|---|
| Unacceptable | 1 |
| 2 | |
| 3 | |
| 4 | |
| Outstanding | 5 |
| Age | Age_code |
|---|---|
| Under 18 | 1 |
| 18 - 24 | 2 |
| 25 - 34 | 3 |
| 35 - 44 | 4 |
| 45 - 54 | 5 |
| 55 - 64 | 6 |
| 65 and over | 7 |
| Gender | Gender_code |
|---|---|
| Male | 1 |
| Female | 2 |
| Non-binary | 3 |
| Income | Income_code |
|---|---|
| Under 50,000 | 1 |
| $50,000 - $100,000 | 2 |
| $100,001 - $150,000 | 3 |
| Over $150,000 | 4 |
| Other Currency (specify) | 5 |
| Variable | n | Mean | SD | Action_required |
|---|---|---|---|---|
| Artwork | 418 | 3.949761 | 0.9264887 | No |
| Food | 493 | 3.523327 | 0.9095046 | Yes |
| Retail | 459 | 3.562092 | 0.8704017 | Yes |
| Airport Signage | 540 | 4.027778 | 0.8791370 | No |
| Walkability | 531 | 4.158192 | 0.7656689 | No |
| Info Screens | 499 | 4.100200 | 0.8028438 | No |
| Info Booths Lower Level | 298 | 3.815436 | 0.9005217 | No |
| Info Booths Upper Level | 293 | 3.907850 | 0.9517683 | No |
| WIFI | 409 | 4.002445 | 1.0182135 | Yes |
| Road Signs | 356 | 4.039326 | 0.9366549 | No |
| Parking | 224 | 3.799107 | 0.8469407 | No |
| Long Term Parking | 120 | 3.908333 | 0.9166603 | No |
| Airtrain | 258 | 4.046512 | 0.8984246 | No |
| Car Rentals | 212 | 3.820755 | 0.9813152 | No |
Satisfaction_Question 1 2 3
Length:14 Min. : 0.000 Min. : 6.00 Min. : 29.00
Class :character 1st Qu.: 1.500 1st Qu.:10.00 1st Qu.: 66.00
Mode :character Median : 4.000 Median :14.50 Median : 86.00
Mean : 3.929 Mean :18.71 Mean : 90.93
3rd Qu.: 5.000 3rd Qu.:21.50 3rd Qu.: 99.00
Max. :10.000 Max. :57.00 Max. :176.00
4 5
Min. : 46.0 Min. : 36.0
1st Qu.:112.2 1st Qu.: 65.5
Median :135.5 Median : 87.0
Mean :143.9 Mean :107.5
3rd Qu.:183.2 3rd Qu.:154.2
Max. :237.0 Max. :195.0